Of course, there is a difference, the battery is large, the battery is small, the battery is small, most of this is the case, the small capacity of the battery to charge the headset a few times can not withstand the charge, to tell the truth or depends on the size of the battery, rather than the battery, some of the battery is too large capacity is small, which is caused by the low utilization of space. You can see the battery capacity by reading the manual when you buy it.